Ultrahigh-speed optical coherence tomography utilizing all-optical 40 MHz swept-source

Tiancheng Huo; Chengming Wang; Xiao Zhang; Tianyuan Chen; Wenchao Liao; Wenxin Zhang; Shengnan Ai; Jui-Cheng Hsieh; Ping Xue

doi:10.1117/1.JBO.20.3.030503

24 March 2015 Ultrahigh-speed optical coherence tomography utilizing all-optical 40 MHz swept-source

Tiancheng Huo, Chengming Wang, Xiao Zhang, Tianyuan Chen, Wenchao Liao, Wenxin Zhang, Shengnan Ai, Jui-Cheng Hsieh, Ping Xue

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Journal of Biomedical Optics, Vol. 20, Issue 3, 030503 (March 2015). https://doi.org/10.1117/1.JBO.20.3.030503

Abstract

We present an ultrahigh-speed optical coherence tomography (OCT) based on an all-optical swept-source with an A-scan rate of 40 MHz. The inertia-free swept-source, which has its output power of 41.2 mW and tuning range of 40 nm and high scan linearity in wavenumber with Pearson’s correlation coefficients r of 0.9996, consists of a supercontinuum laser, an optical band-pass filter, a linearly chirped fiber Bragg grating, an erbium-doped fiber amplifier, and two buffer stages. With sensitivity of 87 dB, high-speed OCT imaging of biological tissue in vivo is also demonstrated.

CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Tiancheng Huo, Chengming Wang, Xiao Zhang, Tianyuan Chen, Wenchao Liao, Wenxin Zhang, Shengnan Ai, Jui-Cheng Hsieh, and Ping Xue "Ultrahigh-speed optical coherence tomography utilizing all-optical 40 MHz swept-source," Journal of Biomedical Optics 20(3), 030503 (24 March 2015). https://doi.org/10.1117/1.JBO.20.3.030503

Published: 24 March 2015

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